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<p>Hi Bob and Matt,</p>
<p>I have attached two diagrams with the changes which we need to
make today. The N2 change is the most critical, due to the
installation of the Aerogel. I will contact you this morning to
discuss any issues you may have with the change.</p>
<p>Thanks,</p>
<p>Marc<br>
</p>
<br>
<div class="moz-cite-prefix">On 11/16/2017 9:47 AM, Marc McMullen
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:08163ef3-0f63-f017-d399-ec7ad708456a@jlab.org">
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<p>Hi Bob,</p>
<p>We are preparing to start continuous N2 flow to the RICH. Once
the Aerogel is installed the purge must be continuous to avoid
the absorption of moisture. Before this happens we need to
install an oil coalescing filter before the N2 supply valve to
the panel. We also have been requested to install an oil
coalescing hepa-filter on the output of the compressor (we have
purchased filters for both compressors).<br>
</p>
<p>We also have been requested to monitor the moisture content of
the compressed air, to do this we will use the same instrument
used on the DC gas. George is looking into the best installation
location on the valve panel for the moisture sensor.</p>
<p>Per the Jlab pressure systems program we need to run this
through you (as the system owner) and get all the approvals
before modifying the approved system. We should have an updated
P&I ready today.</p>
<p>thanks,<br>
</p>
<p><a moz-do-not-send="true"
href="http://www.michell.com/us/products/easidew-online.htm">Easidew
Moisture</a><br>
</p>
<p><a moz-do-not-send="true"
href="https://atlascopcocompressorstore.com/42-cfm-coalescing-filter-001-micron-12-npt?ads_cmpid=775074235&ads_adid=41047268336&ads_matchtype=&ads_network=g&ads_creative=185515089115&utm_term=&ads_targetid=pla-18283950120&utm_campaign=&utm_source=adwords&utm_medium=ppc&ttv=2&gclid=Cj0KCQiAi7XQBRDnARIsANeLIevHsCtFXrb7Bgf9-1GxmhW3gKQnEZATB0nAiLJAIJ1H6kxDYcOYMscaAgSPEALw_wcB">N2
Filter</a></p>
<p><a moz-do-not-send="true"
href="https://atlascopcocompressorstore.com/42-cfm-coalescing-filter-001-micron-12-npt?ads_cmpid=775074235&ads_adid=41047268336&ads_matchtype=&ads_network=g&ads_creative=185515089115&utm_term=&ads_targetid=pla-18283950120&utm_campaign=&utm_source=adwords&utm_medium=ppc&ttv=2&gclid=Cj0KCQiAi7XQBRDnARIsANeLIevOxdc2XtpKUZ-aCs_1uH_NjE4QghCQJHMbdMC0gJbH6zvI2Z4jGb0aArY-EALw_wcB">Air
Filter</a></p>
<p><a moz-do-not-send="true"
href="https://atlascopcocompressorstore.com/42-cfm-coalescing-filter-001-micron-12-npt?ads_cmpid=775074235&ads_adid=41047268336&ads_matchtype=&ads_network=g&ads_creative=185515089115&utm_term=&ads_targetid=pla-18283950120&utm_campaign=&utm_source=adwords&utm_medium=ppc&ttv=2&gclid=Cj0KCQiAi7XQBRDnARIsANeLIevOxdc2XtpKUZ-aCs_1uH_NjE4QghCQJHMbdMC0gJbH6zvI2Z4jGb0aArY-EALw_wcB"><br>
</a></p>
<p><br>
</p>
<pre class="moz-signature" cols="72">--
Marc McMullen
Detector Support Group
757-269-7738</pre>
<br>
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<br>
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Marc McMullen
Detector Support Group
757-269-7738</pre>
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